Justin Bieber Dresses in Snorkel and Flippers for Costume at 2023 Casamigos Halloween Party in L.A.

The "Baby" singer attended the Halloween bash solo on Friday

Justin Bieber never disappoints with his Halloween look.

The singer, who has been married to Hailey Baldwin Bieber since 2018, stepped out in Los Angeles wearing a fun costume for the spooky holiday.

Spotted at the annual Casamigos Halloween Party in Beverly Hills on Friday night, the "Love Yourself" singer chose a Halloween costume with a playful, underwater-themed twist.

Justin, 29 — who attended the party without his wife — wore a fun, beach-inspired costume for the Halloween bash, which included a pink, orange and yellow floral patterned shirt that was worn open over a pair of printed pink shorts.

But the real showstoppers of his outfit were the snorkeling mask and flippers he also wore, both of which featured yellow detailing that complemented the star's shirt.

After he arrived at the party, Justin was spotted taking photographs with Billie Eilish's musician brother, Finneas, as well as mingling with other partygoers.

Alongside the two music stars, the Casamigos Tequila bash was attended by a host of celebrities, including Cindy Crawford and Rande Gerber — who hosts the annual party on behalf of his liquor company.

The couple were joined, of course, by their kids Kaia Gerber and Presley Gerber, and others including Kaia's boyfriend Austin Butler, Alessandra Ambrosio, Jenna Dewan, Victoria Justice, Jason and Brett Oppenheim, Paris Hilton, Edward Norton, Megan Fox, Machine Gun Kelly, Sarah Hyland and Wells Adams and Glen Powell.

Though Hailey, 26, wasn't at the Casamigos party, she did get into the Halloween spirit on Friday, announcing a spooky new episode of her show, "Who's in My Bathroom." The Rhode founder shared a series of posts on her Instagram Story highlighting the new episode and showing her and guest, comedian Owen Thiele, in vampire costumes as they hung out in Hailey's Halloween-themed bathroom.

Related: Justin and Hailey Bieber Keep It Casual on Morning Coffee Run in West Hollywood 

Despite the solo appearance at the party, Justin and Hailey usually get into the holiday spirit together, frequently hitting up celeb-filled Halloween parties and showing off their fun costumes in photos.

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Last year, Hailey went very fashion-forward with her solo costume, wearing a rose-covered two-piece inspired by a major '90s runway fashion moment: the look French model Laetitia Casta wore on the 1999 YSL Haute Couture runway.

That same year, the Rhode skincare line founder also wore all-black in costume as a "Versace Vampire" for a party while Justin popped on a blue Cookie Monster onesie.

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